Apple has released QuickTime 7.3.1 for Panther, Tiger and Leopard via Mac OS X's Software Update utility and on the Web. According to the company, QuickTime 7.3.1 addresses security issues and is recommend for all QuickTime 7 users. It fixes issues with QuickTime's Flash media handler, the handling of QTL files, and that nasty RTSP vulnerability recently discovered by Symantec. You can read more details about the security content of QuickTime 7.3.1 here.

No problems, but I always feel like the update process is going to stall in Leopard. It just sits there on that blue screen for the longest time after installing the actual update. I'm talking about before the restart. This one sat there for a good five minutes or so before restarting.